Overflow-stop for lift and force pumps.



Patented July 6, 1909.

E. N OPPEL. ovBBFLoW STOP Fon LIFT AND FORGE PUMPS APPLIOTION FILED NOV. 10, 1908.

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M me;

UNITED STATES PATENT OFFICE.

EMIL NOPPEL, OF PHILADELPHIA, PENNSYLVANIA.

OVERFLOW-STOP FOR LIFT .AND FORCE PUMPS.

To all whom 'it may concern:

Be it known that I, EMIL N OPPEL, a citi- Zen of the United States, residing in the city and county of Philadelphia, State of Pennsylvania, have invented a new and useful Overflow-Stop for Lift and Force Pumps, of which the following is a specification.

My invention relates to a new and useful overflow stop for lift and force pumps and consists in providing means for preventing the air from reaching the overflow in a sink, basin, etc., and of means for positively locking the stop in position.

It further consists in providing means for engagement with a hose coupling.

It further consists of other novel features of construction, all as will be hereinafter fully set forth.

Figure 1 represents a perspective view of an overflow stop and a drain outlet in detached position showing the parts in proper relation to each other. Fig. 2 represents a sectional view thereof. Figs. 3 and 4 represent sectional views showing different forms of expanders which may be employed. Fig. .5 represents a side elevation of a portion of a hose showing a coupling attached thereto.

Similar numerals of reference indicate corresponding p arts in the figures.

`teferringto the drawings, I have found in practice in the use of a lift and force pump that it is necessary to prevent the air from the pump from reaching the overflow outlet of the sink, basin etc., and that it is further necessary to lock the stop in position in the drain and in the drawings, I have shown a construction for these purposes and which I have found, operates successfully, in practice, but it is to be understood that other in strumentalities may be employed, changes may be made in the construction and the arrangement of the parts may be varied and I do not, therefore, desire to be limited, in every instance, to the exact construction as herein shown and described but desire to make such chan ges as may be necessary.

1 designates one form of a drain outlet used in sinks, basins, etc., which is provided with openings 2 in the sides thereof which lead to the overflow of the sink, basin, etc., and which outlet is provided with suitable bars or stops 3 or other suitable means for preventing solid objects from entering the drain.

V4 designates the body of the overflow stop which is preferably formed of rubber or other suitable resilient material and which Specification of Letters Patent.

Application filed November 1U, 1.908.

Patented Jury e, i909.

seria1No.461,s96.

has a depending portion 5 forming part of the body adapted to be seated in the drain p)utlet and which is provided with a suitable ore.

6 designates a tube or sleeve having the flaring end 7 which is preferably bell-shaped and the outer wall of which is provided with the screw threads 8, said tube 6 forming a stiffener and expander, as will be hereinafter described, and is adapted. to be seated in the bore of the body 4 and the depending portion 5, it being understood that the tube may be of any suitable size and thickness and the bore thereof may be of any diameter.

9 designates a nut which in the present instance is adapted to be seated in a recess in the upper portion of the body 4 and which nut is adapted to engage with the threads 8 on the expander 6. I preferably place a washer between the nut 9 and the shoulder formed in the body portion 4 and said nut in the present instance being provided with a flange 12 between which and thc upper edge of the body 4, I place a washer 13. If desired, the upper edges ofthe nut may be milled or provided with suitable nicks as at 14 for ease of manipulation.

The operation of the device just described will be readily apparent. When it is desired to place the stop in position in the drain out let the flaring end 7 of the expander 6 is lowered. in the bore by suitable rotation of the nut 9 and the depending portion 5 of the body is inserted in the drain outlet a suitable distance in order to effeetually close the outlet opening 2 therein. By now properly rotating the nut 9 the expander 6 is moved up in the bore causing the flaring end 7 to expand the bore and force out the lower portion of the depending portion 5 against the walls of the drain outlet, tightly locking the stop in position so that when the lifting force pump is in use the operator need pay no attention to the stop as it will be firmly locked or held and thus the pump can be effectu ally operated without displacement of the stop. In order to release the stop, the nut 9 is rotated in the opposite direction lowering the expander 6 and with it the flaring end 7 so that the wedging action ceases and the stop can be removed.

While I have shown the nut 6 as seated in the recess 10 it will be understood that any suitable form of nut may be employed and the engagement with the body may be in any desired manner it only being necessary to shown an expander' (i the same as provide a construction in which the rotation el the nut which is engaging with the expander 6, will cause the same to be moved up and down in order to provide for proper ixpansion or contraction of the depending` portion It will. be noten that tne nut on the expander 6 projects a suitable distance above the top of the nut 9 and by this means l am enabled to connect a coupling l5 with the end of said expander 6, which coupling is in suitable connection with a hose 16, so that the stop is adapted `lor use with the hose as Well as a litt and torce pump.

In the construction shown in Fig. 3, l have shown in 2 excepting` that l have provided the recesses or cut away portions 1.7 to accommodate one oi the cross bars 3 in order that the expander .vill be suitably seated in the drain outlet l so that the depending` portion 5 will close the outlet openings 2. ln some instances l may provide the expander' 6 with the oppositely turned aws 18 and 1Q on opposite sides ol the expander which are adapted to be placed in engagement with one ol the cross bars 3 in order to assist in the locking action of the expander.

Having thus described my invention, what ,lf claim as new and desire to secure by Letters latent, is zl. In a device oi the character described, a hollow body termed oi resilient material and adapted to be inserted in a drain outlet, means carried by said body l'or preventing collapse thereof and adapted to be suitably actuated for expanding` the body 'lor locking the same in said drain outlet. Y

2. In an overflow stop for ii'lit and torce pumps, a resilient body having' a recess in its upper portion and having a dependingl portion adapted to be inserted in a drain inlet, means lor expanding` said depending portion i'or locking' the same in said outlet and a means seated in said recess and engaging said expanding means for actuating` the same.

3. ln an overflow stop Jror litt and i'orce pumps7 a resilient body adapted to be insorte:l in a drain outlet and a stilleiiing sleeve suitably carried by said body having` a ilaring end adapted to be actuated to expand said body for locking the stop in the drain outlet.

4. ln an overflow stop lor lift and lorce pumps, a resilient body adapted to be inserted in a drain outlet and havingl a bore therethrough, a stilleningg sleeve seated in said bore and having` a llaring end, and means producing relative movement between the sleeve and resilient body whereby the llaringr end expands the body for locking the same in the drain outlet.

5. ln an overflow stop for liit and lorce pumps, a resilient body adapted to be inserted in a drain outlet and having a bore therethrough, a sti'l'fening` sleeve seated in said bore and having)r a 'flaring end and a nut in engagement with said sleeve l'or operating` the same whereby the stop may be loclred in position in the drain outlet.

6. ln an overflow stop Vlor li'lit and Vlorce pumps, a resilient body adapted to be inserted in a drain outlet and having a suitable bore, a sleeve suitably carried by said body ior stil'lening the same and having a flaring end, threads on said sleeve and a nut in engagement with said sleeve proi'lucingf relative movement between the sleeve and resilient body whereby the flaring;` end is adapted to expand the body and lock the stop in the drain outlet.

7. ln an over-[low stop 'lor lilt and Vlorce pumps, a resilient body adapted to be inserted in a drain outlet, a sleeve having a threaded portion carried by said body 'lor stil'lening` the same and having a v.flaring` end, a nut in engagement with the threaded portion of said sleeve producing relative movement between the sleeve and resilient body whereby the flaring end caused to raise or lower in said bore, whereby the body may be expanded and the threaded end ot said sleeve project a suitable distance beyond the top of the nut whereby the end is adapted for engagement witl'i a suitable coupling,` or other device.

S. An overllowstop tor lilt and lorce pumps7 comprising a resilient body adapted to be inserted in a drain outlet, and jaws adapted to engage with the cross bars .in the drain for assistingv in holding' the stop in position.

EMIL NGPPEL.

llllitnesses:

WM. Canne Wrnnnnsnin, J. C. MeGLAsHEN. 

